EMERGENCY - How to Recover a Vehicle 6. Ensure that the tow pin and lock clip are installed before using the hitch. 7. Remove the hitches and store all parts after recovering the vehicle. axle shafts before towing the vehicle could seriously damage your vehicle. All lubricating and clutch application oil pressure is provided by an engine- driven pump, which does not work when the engine is stopped. When ve- hicles are towed either by wrecker or piggyback, lubricant in the top front of the drive axle will drain to the rear. This will leave the top components dry, resulting in friction that will seriously damage these components.
WARNING An open air line on the recovered vehi- cle will cause a leak in the air system of the recovery vehicle if both vehicles’ brake systems are connected. This could cause a loss of system air, which can cause the service brakes not to function, resulting in the sudden appli- cation of the spring brakes causing wheel lock-up, loss of control, or over- take by following vehicles. You could be in an accident involving death or personal injury. Ensure that any air line that has been removed from a driver- controlled main differential lock is firm- ly capped to prevent loss of air pres- sure from the recovery vehicle if it is supplying air pressure.
2 How to Prepare the Axles for Towing If the vehicle is going to be towed from the front axle and using the rear axle for support, then the axle shafts should be prepared [removed] so that minimal damage is made to the differential during the towing process. 2. If the vehicle has driver controlled differential lock, then manually lock the differential. 3. Remove drive axle shafts. 4. Cover the open ends of the hubs to prevent dirt and debris from entering the axle. Ensure that the recovered vehicle does not have an open air line. An open air line on the recovered vehicle will cause a leak in the air system of the recovery vehicle if both vehicles’ brake systems are connected.
This could cause a loss of system air, which can cause the service brakes not to function, resulting in the sudden application of the spring brakes causing wheel lock-up, loss of control, or overtake by following vehicles. 1. Lift driving wheels off the ground or remove the driveline and axle shafts before towing the vehicle. CAUTION Water, dirt and other material can en- ter an open hub or axle. This can con- taminate the axle fluid and cause pos- sible damage to components. Ensure that the hubs are covered with plastic whenever a drive axle shaft is re- moved. CAUTION Failure to lift the driving wheels off the ground or remove the driveline and Y53-6047-2HEN (03/18) 53